Table 1.

Characteristics of the PyMT cell lines generated from tumors arising in a WT or a Rag1^−/− background.

PRIMARY ONCOGENESIS				PRIMARY TRANSPLANT
#	Genotype	Age onset (days)	Age at tumor harvest (days)	Average time: 10×10 mm in WT host1(days)	Average time: 10×10 mm in Rag2−/− x γc−/− host2(days)	Time1– Time2	Growth phenotype
53	PyMT/Rag1−/−	79	32	32	33	−1	FAST
29	PyMT/Rag1−/−	69	40	40	35	5	FAST
31	PyMT/Rag1−/−	97	62	62	56	6	FAST
32	PyMT/Rag1−/−	97	47	47	26	21	FAST
55	PyMT/Rag1−/−	91	90	90	50	40	SLOW
69	PyMT/Rag1−/−	80	92	92	25	67	SLOW
252	PyMT WT	74	26	26	29	−3	FAST
234	PyMT WT	117	37	37	33	4	FAST
256	PyMT WT	115	74	74	74	0	FAST
235	PyMT WT	93	36	36	14	22	FAST
276	PyMT WT	78	96	96	59	37	SLOW
238	PyMT WT	113	108	108	53	55	SLOW